Vibration absorber



Aug. 18, 1931. I o. J. RUED 1,819,266

VIBRATION ABSORBER Filed Aug. 19. 1929 Patented Aug. 18, 1931 UNITEDSTATES PATENT; OFFICE OLE J". RUED, OF MINNEAPOLIS, MINNESOTA VIBRATION,ABSORBER Application fil'ed August 19, 1929. Serial No. 327,055.

It isthe object of this invention to provide ends and closed edge of thecasing be shaped a novel and improved construction for use to toconformto the surface of the disk 8 and reduce the vibration of and noises fromcar, that the edge of the closed side of the casing wheels, gears, gearcasings and other like be curved to conform to the curvature of the ipa'rts subjected to a pounding action or other inner side of the tire 9of the wheel. In the 55 actions causing vibration and noise. 7 drawings,the edges of the ends and lower To this end,the invention consists inthe edge of the casing are shown as being disnovel parts and novelcombinations of parts, posed all in a true plane, to conform to thehereinafter defined in the claims and deplane surface of the disk 8,while the open 10 scribed in the following specification, made edge ofthe casing is arcuately curved to con- '60 in connection with theaccompanying dravvform to the arcuate curvature of the inner ings,wherein like reference characters refer side of the tire 9. To permitthe casing 11 to the same or similar parts throughout the being seatedtightly against both the disk 8 various views, and, inwhich, and innersurface of tire 9 of the wheel, a

Fig. Iis aviewinside elevation illustrating suitable gasket 12 isprovided formed pref a portion of a railway car wheel equipped erablyfrom rubber or similar material and with an embodiment of the presentinvention;v this gasket is placed so that a portion of the F10. 2-is avertical section taken on the line same bears against the disk 8, whileanother 2-23f Fig. 1 as indicated by the arrows; portion thereof bearsagainst the inner side 7 Fig. Sis aview illustrating in side elevationof the tire 9 in spaced relation from a point a portion of a gearequipped 'with' a second where the disk 8 comes in contact with theembodiment of the invention; tire; All edges of the casing 11 areadapted Fig.- 4 isa vertical section taken on the line ohear agalnstthegasket 12. To securethe A M 4-4055 Fig.3 as indicated by thearrows;casing ll to the wheel, a headed and nutted i "25 Fi 51 a i ill t ti tif a, bolt 13 is used which projects through the brake drum equipped witha third emb didisk 8 of the wheel and also through the casmentof theinvention, and ng 11. Rubber washers M or the like bear- 2 6 is:averti'cal section taken on the line i g g s e other sides of disk 8 andcas- 6.4; f Fig;,5,asindicated by-th arrows; mg 11, are placed betweeniron washers 15 i 30 'R i in 'n a ti l l t Fi 1 d mounted on the twoends of the bolt inwardly 2, portions of a railway car wheel A areilfrom T111? nut r of, to preclude lustrated including the hub'7, disk8, ti 9 the possibillty of leakage of liquid through d th fla g 10: onth ti Wh l h the bolt openlngs in the disk 8 and alsoin theas:the.type-illustrated, are-subjected to a con-- f ng' 11- TheLbOlt 1'3 at its portion project tinuous pounding action as they are moved fromh dlsk 8 1s bent outwardly and over a track and this pounding actionsets ig y toward the hub 7 of the Wheels 50 up vibrationswithinthe-wheel which, in time, t h the o the l s ightened up, tends tocrystallize the material forming the h 'Oaslng 11 W111 be'moved 1 htowards the wheel and also makes the wheel very noisy disk 8 andtowardsthe inner surface of the v when in action, I111 accordance withmy in-- tire 9 totightly clamp all edges of the casing vention, I haveshown in Figs. 1 and 2, a 0011. in place against the' gasket 12; Thecasing t tg hi h, will. largely eli i t ib a 11 is preferably providedwith two threaded tion in both the disk 8 and the tire 9 of the n bOSSedop nings 11a Wi hin which plugs 7 wheelA and will make the wheelpractically 1 are Screwed and preferably one of the '45 noiseless whenin operation. I employ for openings will be provided on theedge of thethis purpose a casing 11 openv at its in r sid casing most closelyadjacent the hub 7, while andalso open at one; edge. The casing 11-theotlier of the openings 110a will'be provided may beof substantiallyrectangular shape, as in the side of the casing. When the casing shown,or may be of other shape, if desired, is inapplied position on thewheel, the casit being merely necessary that the edges of theingtogether with a portion of the disk 8 and a portion of the tire 9will form a closed chamber 17. A liquid B will be supplied to thischamber to completely fill the same and al though practically any typeof liquid can be used, it is preferred to use a non-freezing liquid suchas oil, alcohol or some other liquid non-freezing compound. To supplythe liquid to the chamber 17, it is necessary only to remove one of theplugs 16 and pour the liquid through one of the openings 11a into thechamber. When it becomes desirable to drain the liquid from the chamber,both plugs 16 may be removed to permit air to enter the chamber as theliquid drains out of the same. Preferably, two or more of the casingswill be used on-each wheel, as shown in i Fig. 1, and these casings willbe set either diametrically opposite each other or will be so' disposedrelative to the center of the wheel that the are between the casings isthe same' in order that the wheel may be perfectly counterbalanced. Itis found practically noiseless.

- plied to the wheel also directly against the tire that the liquid thedisk 8 and 9 will act to eliminate practically all vibration of both thedisk and the tire, thereby rendering the wheel It will, of course be'understood that the casing 11 may be applied to a gear, gear casing, orpractically any other member subject to vibration to absorb thevibration thereof. The casing is shown apmerely for the purposes B whichbears directly against of illustration.

In Figs. 3 and 4, a slightly different embodiment of the invention isshown. Por

' 'tions of a gear C are illustrated and a cylincured to the nutted anddrical casing 18 open on its inner side is shown applied to the gear G,there being a gasket 19 interposed between the edges of the casing andthe gear. The casing 18 issegear C as by means of a straight headed bolt20 running through the gear and through the outer side of the easing,and metal and rubber washers 21 and 22, respectively, are interposedbetween the head and nut of the bolt and the side of the gear C and theouter side of thecasing 18. In the chamber 23 formed by the casing 18and the gear C, liquid B is placed, there being two bossed openings 18aformed in the casing andclosed by plugs 29 to permit the admission ofliquid to the chamber and the drainage of the liquid-therefrom. Theliquid B in the chamber 28 will act against the gear to preventvibration of the same and deadenthe noise that would otherwise beemitted 1 as well as from the same when in operation. It will beunderstood that the type of casing illustrated in Figs. 3 and 4: may beused on wheels, gear casings or other parts wherever desired,

in connection with gears. I In Figs. 5 and 6, another embodiment o theinvention is shown and illustrated as being used in connection with abrake drum D, including a disk 24 and a flange 25 form- -each other,

ing a braking surface. A. casing 26 is molded integral with the disk 24and flange 25 of the drum to form a chamber 27 closed by the casing 26,the disk 24 and the flange 25. Threaded openings 27a are provided on thetwo side surfaces of the casing 26 within which plugs 28 are screwed andliquid B is inserted within the chamber 27 to completely fill the same.When in use, the liquid B will act to prevent the vibration of both thedisk 24 and flange 25 of the drum and thereby prevent noises beingemitted by the drum when in use. It will be understood that, if desired,a liquid chamber can be formed on any part such as a wheel, gear, orgear casing subjectable to vibration to absorb'the vibration from thesame.

As was stated, it is preferred to use a liquid B in the various casingscomposed from oil, alcohol or some other non-freezing compound in orderthat the part having the casing applied thereto may be subjected to allWeather conditions without causing the liquid to freeze. In somesituations, the liquid would not be exposed to low temperatures and, accordingly, water could be used if desired. In the embodiment shown inFigs. 1 and 2, and in Figs. 5 .and 6, the liquid situated in one casingalone, will act to absorb the vibration from two surfaces set at anangle to each other, and it is, accordingly, preferred to use one ofthese forms of construction when the vibration in flanged or angularmembers is to be absorbed.

The present vibration absorber is very rious parts without departingfrom the scope of the present invention.

What is claimed is i 1. In a member subjectable' to vibration and havingtwo angular portions joining a removable casing having an open innerside and an open edge, a gasket fitting against both of said portions,said casing being applied to bear against said gasket, means forsimultaneously tightening said casing againstall portions of said gasketto form with said two angular portions a liquid tight chamber and liquidfilling said chamber to absorb the vibration of both of said portions.

2. In a member subjectable to vibration and having a flat portion and acircular portion set at an angle thereto, adevice for absorbing thevibration of both said flat por tion and said circularportion'comprising, a casing open at edge, the 'open edge of said casingbeing curved to fit against said circular portion and the openside ofsaid casing being shaped-t0 fit against said flat portion, means forholding said casing in liquid tight engagement one side and also open atone with both said flat portion and said circular portion to formtherewith a closed chamber and liquid filling said chamber.

3. In a member subjectable to vibration and having two angular portionsjoining each other, a removable casing having an open inner side and anopen edge, said casing being applied so that its open side bears againstone of said angular portions of said member and its open edge bearsagainst the other angular portion of said member, means forsimultaneously tightening said casing against both portions of saidmember to form therewith a fluid tight chamber and fiovvable materialfilling said chamber to ab sorb the vibration of both said portions.

In testimony whereof I aflix my signature.

OLE J. RUED.

